Oil-filter.



e .s' a: I

, fer I No. 702,8l4. Patented June 17, I902.

T. NEUHAY.

OIL FILTER.

(Application filed Dec. 5, 1991.)

(lo Model.)

j: msvafor':

UNITED STA ES;

THOMAS NEURAY, or LTEGE, BELGIUM.

olL-FlLrsa.

PATENT OFFICE.

SPECIFICATION forming part of Letters Patent N o. 70 2, 314, datedJunel'f, 1902.

Application filed December 5, 1901. Serial No. 84 ,8 28.' "(No model.)

To all within it Twang/concern:

Be it known that LTHOMAS NEURAY, a sub- .ject of the King of Belgium,and a resident of LihgeJBelgium, have invented-anewz (1 usefulOil-Filter, of which the following is aspecificatiou. I

This invention has reference to an improved oil-filter; and the objectof my invention is to enable oils which have been used for lubricatingpurposes to be thoroughly cleared of all foreign or injurious matter ormaterials which they may contain after being so used, this cleansing orclearing being efiected without diminishing either the density or thelubricating quality of the oil. In order to attain this-object, I employa series of superposed and preferably cone-shapedi filtering sheets,made of textile fabric or material, a more and more closely wovenmaterial being used. for each successive? filtering sheet. These sheetsare submerged in liot'water in such a manner that the oil being filteredmust pass through the whole series before it reaches and floats on thesurface of the water;

In the accompanying drawings, Figure 1 is a vertical sectional elevationof my improvedoil-filter, and Fig. 2 shows three cone-shapedfiltering-sheets in side elevation. j

My improved oil-filter consists of a cylin drical vessel b, in which Iprovide a seriessay three in number-of preferably coneshapedfiltering-sheetsor equivalents 2 '3 4,-

which are carried on metal or other cones and fit'closely or tightlyagainst. the vessel b, a

central tribe 1", which runs down through said filtering-sheets,serving, inter alict, -to carry the cones. x

On the top of the vessel'b is a reservoira,

tocontain the oil to be filtered, whichjreser- -voir-is in communication-means of a channel q, through which the oil with the tube r by from-thereservoir 0, flows down into the pipe t and'from the latter throughapertures .5 into the hot water contained in the vessel 1).- The oilnext passes upthrough the filteringsheets 2, 3, and 4 until it floatsonthe water,

and when it has. reached a sufficient height it will run out through anorifice'u in the vessel b and into a receptacle d, provided with adraw-01f cock m. The'flow of the .oil from a into I) can be regulated bya 'valve 'v,,carried by avalvespindle t, which latteris con,-

line D D and at a temperature of from to' 80 ceut-igrade, and thefiltered oil collects and floats on this until it overflows through.

the orifice u. The filtering-sheet 1 in the res ervoir a serves toremove the larger bodies of.

matter contained in theoil to be filtered, and the filtering-sheets 2,3, and 4 are successively of finer mesh or made of more closely wovenfabric, so that the oil is practically coinpletely cleared ofallsuchforeign bodies when it has passed through these. The flow of theoil through these filters 2,3, and 4 is also accelerated by reason ofits viscosity being to some extent reduced while passing through the hotwater. The filtering-sheet 5, if employed, isintended to be of thefinest mesh or made of the mo'stclosel y woven fabric suitable for suchpurpose.

provided with a cock n to Thevesselb is enable the water to be drawnelf, if desired, or: through which water may be introduced into-thefilter, and in orderthat the clearing or filtration of the oil may bepractically perfiltering-sheets 2, 3, and 4: tightly to the tube 7' andto preferably also ,attach the latter to the cover c of-the vessel 1). v

Having now described my inveiitiom-What I claim as new, and desire tosecure by'Letters:

u near the top end of-said vessel, a cover a to close said vessel, atube r fixed to said cover and reaching down to about the-bottom of thevessehthelower end of said tube being formed with apertures s, and aseries of superposed filtering-sheets of successively finer mesh fixedaround said tube 1 and fitting against thevessel.b,'all forthe purposesand substantially as set forth.

.2. In an oil-filter, the combination of a ves sel-b-adapted to containhot water, an orifice u nearthe top end of said vessel. a cover 1.: to

the combination of'a ves-l sol b adapted to contain-hot water, anorifice too close said vessel, a tube 7' fixed to said cover andreaching down to about the bottom of the vessel, the lowerend of saidtube bein'gformed with apertures s, a series of superposedfiltering-sheets of successively finer mesh fixed around said tube 1'andfitting against the vessel in communication by a channel q with thetube 1", a valve '21, valve-spindle i,regulatingscrew p, and afiltering-sheet 1 near the bot tom of said reservoir, all for thepurposes and substantially as set forth.

3. In an oil-filter; the combination of a vessol 1) adapted to containhot water, an orifice "111 near the top end of said vessel, a cover a toclose sa id -vessel,-a tube '1- fixed to said cover and reaching down'to about the bottom of the vessel, the lower end of said tube being I),a reservoir a, mounted on the vessel b andsuccessively finer xneshfixedaround said tube-r and fitting against the vessel 1), a reservoir amounted on the vessel Z1 and infcoinmunication by a channel with thetube r, a valve 12, valvespindle t, regulating-screwp, a filtering-sheet1 near the bottom of said reservoir; .9. recep tacle d on the sideof'the vessel b, a filteringsheet 5 in said receptacle, and draw-01fcocks, m and n, all for the purposes and substantially as set forth. I

In testimony whereof -I have hereunto set my hand in presence-of twowitnesses. THOMAS N EURAY. Witnesses: v .0. S. NEY,

GREGORY- PHELAN,

a series of super-,

